package com.zzyl.nursing.service.impl;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.ObjUtil;
import cn.hutool.core.util.ObjectUtil;
import cn.hutool.core.util.StrUtil;
import cn.hutool.json.JSONUtil;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.zzyl.common.exception.base.BaseException;
import com.zzyl.common.utils.IDCardUtils;
import com.zzyl.common.utils.SecurityUtils;
import com.zzyl.nursing.domain.*;
import com.zzyl.nursing.dto.CancelNursingTaskDto;
import com.zzyl.nursing.dto.ExecuteNursingTaskDto;
import com.zzyl.nursing.dto.NursingTaskPageDto;
import com.zzyl.nursing.mapper.NursingTaskMapper;
import com.zzyl.nursing.service.*;
import com.zzyl.nursing.vo.NursingTaskVo;
import com.zzyl.serve.domain.NursingLevel;
import com.zzyl.serve.domain.NursingProject;
import com.zzyl.serve.service.INursingLevelService;
import com.zzyl.serve.service.INursingPlanService;
import com.zzyl.serve.service.INursingProjectService;
import com.zzyl.serve.vo.NursingPlanVo;
import com.zzyl.serve.vo.NursingProjectPlanVo;
import com.zzyl.system.mapper.SysUserMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.time.LocalTime;
import java.util.*;
import java.util.stream.Collectors;

/**
 * 护理任务Service业务层处理
 *
 * @author ruoyi
 * @date 2025-08-06
 */
@Service
@Slf4j
public class NursingTaskServiceImpl extends ServiceImpl<NursingTaskMapper, NursingTask> implements INursingTaskService {
    @Autowired
    private NursingTaskMapper nursingTaskMapper;

    @Autowired
    private SysUserMapper sysUserMapper;

    @Autowired
    private ICheckInService checkInService;

    @Autowired
    private ICheckInConfigService checkInConfigService;

    @Autowired
    private INursingLevelService nursingLevelService;

    @Autowired
    private INursingPlanService nursingPlanService;

    @Autowired
    private INursingElderService nursingElderService;

    @Autowired
    private INursingProjectService nursingProjectService;

    @Autowired
    private IElderService elderService;

    /**
     * 查询护理任务
     *
     * @param id 护理任务主键
     * @return 护理任务
     */
    @Override
    public NursingTask selectNursingTaskById(Long id) {
        return getById(id);
    }

    /**
     * 分页查询
     *
     * @param nursingTaskPageDto
     * @return
     */
    @Override
    public List<NursingTaskVo> findNursingTaskList(NursingTaskPageDto nursingTaskPageDto) {
        List<NursingTask> nursingTasks = nursingTaskMapper.selectList(Wrappers.<NursingTask>lambdaQuery()
                .like(nursingTaskPageDto.getElderName() != null, NursingTask::getElderName, nursingTaskPageDto.getElderName())
                .eq(nursingTaskPageDto.getProjectId() != null, NursingTask::getProjectId, nursingTaskPageDto.getProjectId())
                .between(nursingTaskPageDto.getStartTime() != null && nursingTaskPageDto.getEndTime() != null,
                        NursingTask::getEstimatedServerTime, nursingTaskPageDto.getStartTime(), nursingTaskPageDto.getEndTime())
                .eq(nursingTaskPageDto.getStatus() != null, NursingTask::getStatus, nursingTaskPageDto.getStatus()));

        List<NursingTaskVo> nursingTaskVos = new ArrayList<>();

        for (NursingTask tempNursingTask : nursingTasks) {
            List<Long> list = JSONUtil.toList(tempNursingTask.getNursingId(), Long.class);
            Long nurseId = nursingTaskPageDto.getNurseId();

            // 遍历找到护理员名称
            List<String> nursingNameList = new ArrayList<>();
            if (nursingTaskPageDto.getNurseId() != null) {
                if (list.contains(nurseId)) {
                   /* String nickName = sysUserMapper.selectUserById(nurseId).getNickName();
                    nursingNameList.add(nickName);*/
                    list.forEach(nursingId -> {
                        String nickName = sysUserMapper.selectUserById(nursingId).getNickName();
                        nursingNameList.add(nickName);
                    });
                } else {
                    // 否则直接跳过这条数据（不添加到结果中）
                    continue;
                }
            } else {
                list.forEach(nursingId -> {
                    String nickName = sysUserMapper.selectUserById(nursingId).getNickName();
                    nursingNameList.add(nickName);
                });
            }

            // 只有在满足条件时才创建并添加 NursingTaskVo
            NursingTaskVo nursingTaskVo = BeanUtil.toBean(tempNursingTask, NursingTaskVo.class);
            nursingTaskVo.setNursingName(nursingNameList);
            nursingTaskVos.add(nursingTaskVo);
        }

        return nursingTaskVos;
    }


    /**
     * 查询护理任务列表
     *
     * @param nursingTask 护理任务
     * @return 护理任务
     */
    @Override
    public List<NursingTaskVo> selectNursingTaskList(NursingTask nursingTask) {
        List<NursingTask> nursingTasks = nursingTaskMapper.selectNursingTaskList(nursingTask);
        List<NursingTaskVo> nursingTaskVos = new ArrayList<>();
        nursingTasks.forEach(tempNursingTask -> {
            List<Long> list = JSONUtil.toList(tempNursingTask.getNursingId(), Long.class);
            //遍历找到护理员名称
            List<String> nursingNameList = new ArrayList<>();
            list.forEach(nursingId -> {
                String nickName = sysUserMapper.selectUserById(nursingId).getNickName();
                nursingNameList.add(nickName);
            });
            NursingTaskVo nursingTaskVo = BeanUtil.toBean(tempNursingTask, NursingTaskVo.class);
            nursingTaskVo.setNursingName(nursingNameList);
            nursingTaskVos.add(nursingTaskVo);
        });
        return nursingTaskVos;
    }

    /**
     * 新增护理任务
     *
     * @param nursingTask 护理任务
     * @return 结果
     */
    @Override
    public int insertNursingTask(NursingTask nursingTask) {
        return save(nursingTask) ? 1 : 0;
    }

    /**
     * 修改护理任务
     *
     * @param nursingTask 护理任务
     * @return 结果
     */
    @Override
    public int updateNursingTask(NursingTask nursingTask) {
        return updateById(nursingTask) ? 1 : 0;
    }

    /**
     * 批量删除护理任务
     *
     * @param ids 需要删除的护理任务主键
     * @return 结果
     */
    @Override
    public int deleteNursingTaskByIds(Long[] ids) {
        return removeByIds(Arrays.asList(ids)) ? 1 : 0;
    }

    /**
     * 删除护理任务信息
     *
     * @param id 护理任务主键
     * @return 结果
     */
    @Override
    public int deleteNursingTaskById(Long id) {
        return removeById(id) ? 1 : 0;
    }

    /**
     * 获取护理任务详细信息
     *
     * @param id
     * @return
     */
    @Override
    public NursingTaskVo findNursingTaskById(Long id) {
        NursingTask nursingTask = this.getById(id);
        NursingTaskVo nursingTaskVo = BeanUtil.toBean(nursingTask, NursingTaskVo.class);
        //得到护理员id
        String nursingIdArrayStr = nursingTask.getNursingId();
        if (StrUtil.isEmpty(nursingIdArrayStr)) {
            nursingTaskVo.setNursingName(new ArrayList<>());
            return nursingTaskVo;
        }
        //解析护理员id
        List<Long> list = JSONUtil.toList(nursingIdArrayStr, Long.class);
        //遍历找到护理员名称
        List<String> nursingNameList = new ArrayList<>();
        //先转为集合
        list.forEach(nursingId -> {
            String nickName = sysUserMapper.selectUserById(nursingId).getNickName();
            nursingNameList.add(nickName);
        });
        nursingTaskVo.setNursingName(nursingNameList);

        //补充数据
        Elder elder = elderService.selectElderById(nursingTask.getElderId());
        if (ObjUtil.isEmpty(elder)) {
            throw new BaseException("未找到该老人相关信息");
        }
        CheckIn checkIn = checkInService.getOne(Wrappers.<CheckIn>lambdaQuery()
                .eq(CheckIn::getElderId, nursingTask.getElderId()));
        if (ObjUtil.isEmpty(checkIn)) {
            throw new BaseException("未找到该老人入住相关信息");
        }
        String nursingLevelName = checkInConfigService.getOne(Wrappers.<CheckInConfig>lambdaQuery()
                .eq(CheckInConfig::getCheckInId, checkIn.getId())).getNursingLevelName();
        if (ObjUtil.isEmpty(nursingLevelName)) {
            throw new BaseException("未找到该老人入住配置相关信息");
        }
        int age = IDCardUtils.getAgeByIdCard(elder.getIdCardNo());
        int sex = IDCardUtils.getGenderFromIdCard(elder.getIdCardNo());
        nursingTaskVo.setAge(age);
        nursingTaskVo.setSex(sex == 1 ? "女" : "男");
        nursingTaskVo.setNursingLevelName(nursingLevelName);
        String nickName = null;
        if (StrUtil.isEmpty(nursingTask.getUpdateBy())) {
            nickName = sysUserMapper.selectUserById(SecurityUtils.getUserId()).getNickName();
        } else {
            nickName = sysUserMapper.selectUserById(Long.valueOf(nursingTask.getUpdateBy())).getNickName();
        }
        nursingTaskVo.setUpdater(String.valueOf(nickName));
        return nursingTaskVo;
    }

    /**
     * 取消护理任务
     *
     * @param dto
     * @return
     */
    @Override
    public boolean cancelNursingTask(CancelNursingTaskDto dto) {
        boolean flag = this.update(Wrappers.<NursingTask>lambdaUpdate()
                .set(NursingTask::getStatus, 3)
                .set(NursingTask::getCancelReason, dto.getReason())
                .set(NursingTask::getUpdateBy, SecurityUtils.getUserId())
                .set(NursingTask::getUpdateTime, LocalDateTime.now())
                .eq(NursingTask::getId, dto.getTaskId()));
        return flag;
    }

    /**
     * 执行护理任务
     *
     * @param executeNursingTaskDto
     * @return
     */
    @Override
    public boolean executeNursingTask(ExecuteNursingTaskDto executeNursingTaskDto) {
        NursingTask nursingTask = NursingTask.builder()
                .id(executeNursingTaskDto.getTaskId())
                .estimatedServerTime(executeNursingTaskDto.getEstimatedServerTime())
                .mark(executeNursingTaskDto.getMark())
                .taskImage(executeNursingTaskDto.getTaskImage())
                .status(2)
                .realServerTime(LocalDateTime.now())
                .build();
        nursingTask.setUpdateBy(String.valueOf(SecurityUtils.getUserId()));
        nursingTask.setUpdateTime(new Date());
        boolean flag = this.updateById(nursingTask);
        return flag;
    }

    /**
     * 任务改期
     *
     * @param executeNursingTaskDto
     * @return
     */
    @Override
    public boolean updateTime(ExecuteNursingTaskDto executeNursingTaskDto) {
        NursingTask nursingTask = NursingTask.builder().
                id(executeNursingTaskDto.getTaskId())
                .estimatedServerTime(executeNursingTaskDto.getEstimatedServerTime())
                .status(1)
                .build();
        nursingTask.setUpdateTime(new Date());
        nursingTask.setUpdateBy(String.valueOf(SecurityUtils.getUserId()));
        boolean flag = this.updateById(nursingTask);
        return flag;
    }

    @Override
    public void createMonthTask(Elder elder) {
        //校验
        if (elder == null || elder.getId() == null) {
            log.info("老人不能为空");
            return;
        }

        //获取入住信息
        CheckIn checkIn = checkInService.getOne(Wrappers.<CheckIn>lambdaQuery().eq(CheckIn::getElderId, elder.getId()));

        //获取入住及入住配置信息
        CheckInConfig checkInConfig = checkInConfigService.getOne(Wrappers.<CheckInConfig>lambdaQuery()
                .eq(CheckInConfig::getCheckInId, checkIn.getId()));
        //开始时间
        LocalDateTime startTime = LocalDateTime.now();
        //判断开始是在当天时间
        if (checkInConfig.getFeeStartDate().toLocalDate().isEqual(LocalDateTime.now().toLocalDate())) {
            startTime = checkInConfig.getFeeStartDate();
        }

        //护理等级
        NursingLevel nursingLevel = nursingLevelService.selectNursingLevelById(checkInConfig.getNursingLevelId());
        //护理计划
        NursingPlanVo nursingPlanVo = nursingPlanService.selectNursingPlanById(nursingLevel.getPlanId());
        //查询老人对应的护理员列表
        List<NursingElder> nursingElderList = nursingElderService.list(Wrappers.<NursingElder>lambdaQuery().eq(NursingElder::getElderId, elder.getId()));
        String nursingIds;
        if (CollUtil.isNotEmpty(nursingElderList)) {
            List<Long> list = nursingElderList.stream().map(NursingElder::getNursingId).collect(Collectors.toList());
            //多个id用逗号分隔，转换为字符串 TODO 待优化
            nursingIds = JSONUtil.toJsonStr(list);
//            nursingIds = StringUtils.join(list, ",");
        } else {
            nursingIds = "[]";
        }

        //查询所有的护理项目
        List<NursingProject> list = nursingProjectService.list();
        //转换为map key是id,value是name
        Map<Long, String> nursingProjectMap = list.stream().collect(Collectors.toMap(NursingProject::getId, NursingProject::getName));

        //组装护理任务
        List<NursingTask> nursingTasks = new ArrayList<>();

        LocalDateTime finalStartTime = startTime;
        nursingPlanVo.getProjectPlans().forEach(v -> {
            //执行频次
            Integer executeFrequency = v.getExecuteFrequency();
            //执行时间
            String executeTime = v.getExecuteTime();
            LocalTime localTime = LocalTime.parse(executeTime);
            //开始执行时间
            LocalDateTime firstExecutionTime = LocalDateTime.of(finalStartTime.toLocalDate(), localTime);
            // 计算相差天数
            LocalDateTime monthEndTime = LocalDateTime.of(finalStartTime.getYear(), checkInConfig.getFeeStartDate().getMonth(), finalStartTime.toLocalDate().lengthOfMonth(), 23, 59);
            // 间隔天数
            long diffDays = monthEndTime.toLocalDate().toEpochDay() - finalStartTime.toLocalDate().toEpochDay() + 1;
            if (v.getExecuteCycle().equals(0)) {
                // 日
                createTaskByDay(firstExecutionTime, diffDays, nursingTasks, executeFrequency, elder, v, nursingIds, nursingProjectMap);
            } else if (v.getExecuteCycle().equals(1)) {
                // 周
                createTaskByWeek(firstExecutionTime, diffDays, nursingTasks, executeFrequency, elder, v, monthEndTime, nursingIds, nursingProjectMap);
            } else {
                // 月
                createTaskByMonth(firstExecutionTime, monthEndTime, nursingTasks, executeFrequency, elder, v, nursingIds, nursingProjectMap);
            }
        });

        if (CollUtil.isEmpty(nursingTasks)) {
            return;
        }
        saveBatch(nursingTasks);
    }

    /**
     * 按月创建任务
     *
     * @param firstExecutionTime
     * @param monthEndTime
     * @param nursingTasks
     * @param executeFrequency
     * @param elder
     * @param v
     */
    private void createTaskByMonth(LocalDateTime firstExecutionTime, LocalDateTime monthEndTime, List<NursingTask> nursingTasks, Integer executeFrequency, Elder elder, NursingProjectPlanVo v, String nursingIds, Map<Long, String> nursingProjectMap) {
        LocalDateTime executionTime = firstExecutionTime;
        Integer diffDay = (monthEndTime.plusSeconds(1).getDayOfMonth() - executionTime.getDayOfMonth()) / executeFrequency;
        for (int x = 0; x < executeFrequency; x++) {
            // 根据时间差和执行顺序计算每个任务的具体时间
            LocalDateTime seconds = executionTime.plusDays(diffDay * x);
            // 初始化护理任务对象
            NursingTask nursingTask = getNursingTask(elder, v, nursingIds, seconds, nursingProjectMap);
            // 将生成的任务添加到任务列表中
            nursingTasks.add(nursingTask);
        }
    }

    /**
     * 根据周为单位创建护理任务
     * <p>
     * 此方法旨在根据给定的开始时间、差异天数、执行频率等参数，为指定的老人生成护理任务列表
     * 它考虑了跨年情况以及每月结束时间的限制，避免生成越过月末的有效任务
     *
     * @param firstExecutionTime 首次执行时间，用于计算后续任务的时间点
     * @param diffDays           任务之间的时间差，以天为单位，此方法专注于周级别，故此值应与7的倍数有关
     * @param nursingTasks       护理任务列表，方法将新生成的任务添加到此列表中
     * @param executeFrequency   执行频率，决定每周内任务执行的次数
     * @param elder              老人信息对象，任务相关的老人信息由此对象提供
     * @param v                  护理项目计划的视图对象，包含项目ID等信息
     * @param monthEndTime       每月结束时间的限制，确保任务不会跨月生成
     * @param nursingIds         护理员ID列表，以字符串形式传递，用于分配任务给护理员
     */
    private void createTaskByWeek(LocalDateTime firstExecutionTime, long diffDays, List<NursingTask> nursingTasks, Integer executeFrequency, Elder elder, NursingProjectPlanVo v, LocalDateTime monthEndTime, String nursingIds, Map<Long, String> nursingProjectMap) {
        int i;
        // 以7天为步长遍历差异天数，创建每周的任务
        for (i = 0; i < diffDays - 7; i = i + 7) {
            // 计算每周结束时间
            LocalDateTime dayEndTime = LocalDateTime.of(firstExecutionTime.plusDays(i + 7).toLocalDate(), LocalTime.of(23, 59));
            // 计算本周的执行起始时间
            LocalDateTime executionTime = firstExecutionTime.plusDays(i);
            // 根据执行频率计算时间差，用于确定本周内各任务的时间点
            Integer diffDay = (dayEndTime.plusSeconds(1).getDayOfYear() - executionTime.getDayOfYear()) / executeFrequency;
            // 根据执行频率生成本周的任务
            for (int x = 0; x < executeFrequency; x++) {
                // 根据时间差和执行顺序计算每个任务的具体时间
                LocalDateTime seconds = executionTime.plusDays(diffDay * x);
                // 初始化护理任务对象
                NursingTask nursingTask = getNursingTask(elder, v, nursingIds, seconds, nursingProjectMap);
                // 将生成的任务添加到任务列表中
                nursingTasks.add(nursingTask);
            }
        }

        // 处理边界情况，当i超过diffDays-7且小于diffDays时
        if (i > diffDays - 7 && i < diffDays) {
            // 计算到达diffDays时的结束时间
            LocalDateTime dayEndTime = LocalDateTime.of(firstExecutionTime.plusDays(i + 7).toLocalDate(), LocalTime.of(23, 59));
            // 如果结束时间与开始时间年份不同，则返回，避免跨年任务
            if (ObjectUtil.notEqual(dayEndTime.getYear(), firstExecutionTime.getYear())) {
                return;
            }
            // 计算执行时间
            LocalDateTime executionTime = firstExecutionTime.plusDays(i);
            // 计算时间差，确定任务时间点
            Integer diffDay = (dayEndTime.plusSeconds(1).getDayOfYear() - executionTime.getDayOfYear()) / executeFrequency;
            // 根据执行频率生成任务，直到月末
            for (int x = 0; x < executeFrequency; x++) {
                // 计算每个任务的时间
                LocalDateTime seconds = executionTime.plusDays(diffDay * x);
                // 如果任务时间超过月末结束时间，则停止生成
                if (seconds.isAfter(monthEndTime)) {
                    break;
                }
                // 初始化护理任务对象
                NursingTask nursingTask = getNursingTask(elder, v, nursingIds, seconds, nursingProjectMap);
                // 将生成的任务添加到任务列表中
                nursingTasks.add(nursingTask);
            }
        }

    }


    /**
     * 按日创建任务
     * @param firstExecutionTime
     * @param diffDays
     * @param nursingTasks
     * @param executeFrequency
     * @param elder
     * @param v
     */
    /**
     * 根据天数创建护理任务
     * <p>
     * 该方法根据首次执行时间、任务间隔天数、护理任务列表、执行频率、老人信息和护理项目计划数据，
     * 创建一系列的护理任务。任务的创建以天为单位，直到达到任务间隔天数为止。
     *
     * @param firstExecutionTime 首次执行时间，标志着任务创建的起始时间
     * @param diffDays           任务间隔天数，确定需要创建任务的天数范围
     * @param nursingTasks       护理任务列表，创建的任务将被添加到此列表中
     * @param executeFrequency   执行频率，决定一天内任务执行的次数
     * @param elder              老人对象，包含执行任务的老人的信息
     * @param v                  护理项目计划数据对象，包含护理项目的相关信息
     */
    private void createTaskByDay(LocalDateTime firstExecutionTime, long diffDays, List<NursingTask> nursingTasks, Integer executeFrequency, Elder elder, NursingProjectPlanVo v, String nursingIds, Map<Long, String> nursingProjectMap) {
        // 遍历每一天，从首次执行时间开始，直到达到任务间隔天数
        for (int i = 0; i < diffDays; i++) {
            // 计算每一天的任务执行起始时间
            LocalDateTime executionTime = firstExecutionTime.plusDays(i);
            // 确定当天任务执行的结束时间（当天的23:59）
            LocalDateTime dayEndTime = LocalDateTime.of(executionTime.toLocalDate(), LocalTime.of(23, 59));
            // 计算当天内每次执行任务之间的小时差，用于确定执行时间点
            Integer diffHour = (dayEndTime.plusSeconds(1).getHour() - executionTime.getHour()) / executeFrequency;
            // 根据执行频率创建任务
            for (int x = 0; x < executeFrequency; x++) {
                // 计算每个任务的具体执行时间
                LocalDateTime seconds = executionTime.plusHours(diffHour * x);
                // 创建新的护理任务对象
                NursingTask nursingTask = getNursingTask(elder, v, nursingIds, seconds, nursingProjectMap);
                // 将生成的任务添加到任务列表中
                nursingTasks.add(nursingTask);
            }
        }
    }

    /**
     * 获取护理任务对象
     *
     * @param elder
     * @param v
     * @param nursingIds
     * @param seconds
     * @return
     */
    private NursingTask getNursingTask(Elder elder, NursingProjectPlanVo v, String nursingIds, LocalDateTime seconds, Map<Long, String> nursingProjectMap) {
        NursingTask nursingTask = new NursingTask();
        // 设置任务状态
        nursingTask.setStatus(1);
        // 设置护理员ID列表
        nursingTask.setNursingId(nursingIds);
        // 老人姓名
        nursingTask.setElderName(elder.getName());
        // 设置床位号
        nursingTask.setBedNumber(elder.getBedNumber());
        // 设置预估服务时间
        nursingTask.setEstimatedServerTime(seconds);
        // 设置项目ID
        nursingTask.setProjectId(Long.valueOf(v.getProjectId()));
        // 设置老人ID
        nursingTask.setElderId(elder.getId());
        //匹配护理项目
        nursingTask.setProjectName(nursingProjectMap.get(nursingTask.getProjectId()));

        return nursingTask;
    }
}
